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17. The following are effects in the environment by the changes in matter. Which of these has a good effect on the environment? A. air pollution B. composting C. deforestation D. water pollution
18. Many families use wood as fuel in cooking food. What is the bad effect on the environment of this activity? A. deforestation B. air pollution C. land pollution D. water pollution
19. The following activities can be done to candy wrappers. Which of these can help protect and save the environment? A. throw garbage into the river B. scatter candy wrappers in the backyard C. cut out candy wrappers to make pillows D. burn candy wrappers because these are biodegradable wastes
20. Water pollution is one of the bad effects in the environment by the changes in matter. Which of the following can minimize bad effects in the bodies of water? A. oil spills from a cargo ship B. bringing trash bins when having a picnic in the beach C. throwing detergents and other chemicals in the river D. using bath soap and shampoo in swimming at the beach
21. Why are some waste in other places left uncollected? A. Our landfills have a lot of space for our wastes. B. Our landfills cannot accommodate all our wastes. C. Our collected waste products are fewer everyday. D. Our garbage collectors in our place are few. 22. What will happen to uncollected waste? A. It can produce waste.
17.A. Air. Pollution 18.C.land pollution 19C.cut out candy wrappers to make pillows 20.A.oil spills from a cargo ship 21.b.22.a. I'm not sure sana makatulong lang ako
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